Electron microscope



FIG. 1 is a perspective view of an electron microscope as viewed fromthe top, front and right side, showing our new design;

FIG. 2 is a perspective view thereof in an alternate position;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken lines are for illustrative purposes only and form no part ofthe claimed invention.

CLAIM The ornamental design for an electron microscope, as shown anddescribed.